4 * This file is part of LyX, the document processor.
5 * Licence details can be found in the file COPYING.
7 * \author Lars Gullik Bjønnes
9 * Full author contact details are available in file CREDITS.
15 #include "OutputEnums.h"
17 #include "support/unique_ptr.h"
18 #include "support/strfwd.h"
19 #include "support/types.h"
55 class ParConstIterator;
65 class GuiBufferDelegate;
66 class WorkAreaManager;
67 } // namespace frontend
72 class FileNamePairList;
73 } // namespace support
78 } // namespace graphics
82 typedef std::list<Buffer *> ListOfBuffers;
83 /// a list of Buffers we cloned
84 typedef std::set<Buffer *> CloneList;
87 /** The buffer object.
88 * This is the buffer object. It contains all the information about
89 * a document loaded into LyX.
90 * The buffer object owns the Text (wrapped in an InsetText), which
91 * contains the individual paragraphs of the document.
94 * I am not sure if the class is complete or
95 * minimal, probably not.
96 * \author Lars Gullik Bjønnes
99 class MarkAsExporting;
103 /// What type of log will \c getLogName() return?
105 latexlog, ///< LaTeX log
106 buildlog ///< Literate build log
109 /// Result of \c readFile()
119 ReadEmergencyFailure,
136 ExportNoPathToFormat,
137 ExportTexPathHasSpaces,
138 ExportConverterError,
140 // Implies ExportSuccess.
142 // The exported file exists but there was an error when opening
154 explicit Buffer(std::string const & file, bool readonly = false,
155 Buffer const * cloned_buffer = 0);
160 /// Clones the entire structure of which this Buffer is part, starting
161 /// with the master and cloning all the children, too.
162 Buffer * cloneFromMaster() const;
163 /// Just clones this single Buffer. For autosave.
164 Buffer * cloneBufferOnly() const;
166 bool isClone() const;
168 /** High-level interface to buffer functionality.
169 This function parses a command string and executes it.
171 void dispatch(std::string const & command, DispatchResult & result);
173 /// Maybe we know the function already by number...
174 void dispatch(FuncRequest const & func, DispatchResult & result);
176 /// Can this function be exectued?
177 /// \return true if we made a decision
178 bool getStatus(FuncRequest const & cmd, FuncStatus & flag);
181 DocIterator getParFromID(int id) const;
182 /// do we have a paragraph with this id?
183 bool hasParWithID(int id) const;
186 frontend::WorkAreaManager & workAreaManager() const;
189 Takes care of auto-save files and backup file if requested.
190 Returns \c true if the save is successful, \c false otherwise.
193 /// Renames and saves the buffer
194 bool saveAs(support::FileName const & fn);
196 /// Write document to stream. Returns \c false if unsuccessful.
197 bool write(std::ostream &) const;
198 /// Write file. Returns \c false if unsuccessful.
199 bool writeFile(support::FileName const &) const;
201 /// \name Functions involved in reading files/strings.
203 /// Loads the LyX file into the buffer. This function
204 /// tries to extract the file from version control if it
205 /// cannot be found. If it can be found, it will try to
206 /// read an emergency save file or an autosave file.
207 /// \sa loadThisLyXFile
208 ReadStatus loadLyXFile();
209 /// Loads the LyX file \c fn into the buffer. If you want
210 /// to check for files in a version control container,
211 /// emergency or autosave files, one should use \c loadLyXFile.
213 ReadStatus loadThisLyXFile(support::FileName const & fn);
214 /// import a new document from a string
215 bool importString(std::string const &, docstring const &, ErrorList &);
216 /// import a new file
217 bool importFile(std::string const &, support::FileName const &, ErrorList &);
218 /// read a new document from a string
219 bool readString(std::string const &);
220 /// Reloads the LyX file
222 //FIXME: The following function should be private
224 /// read the header, returns number of unknown tokens
225 int readHeader(Lexer & lex);
227 double fontScalingFactor() const;
231 typedef std::map<Buffer const *, Buffer *> BufferMap;
233 void cloneWithChildren(BufferMap &, CloneList *) const;
234 /// save checksum of the given file.
235 void saveCheckSum() const;
237 ReadStatus readFile(support::FileName const & fn);
238 /// Reads a file without header.
239 /// \param par if != 0 insert the file.
240 /// \return \c true if file is not completely read.
241 bool readDocument(Lexer &);
242 /// Try to extract the file from a version control container
243 /// before reading if the file cannot be found.
244 /// \sa LyXVC::file_not_found_hook
245 ReadStatus extractFromVC();
246 /// Reads the first tag of a LyX File and
247 /// returns the file format number.
248 ReadStatus parseLyXFormat(Lexer & lex, support::FileName const & fn,
249 int & file_format) const;
250 /// Convert the LyX file to the LYX_FORMAT using
251 /// the lyx2lyx script and returns the filename
252 /// of the temporary file to be read
253 ReadStatus convertLyXFormat(support::FileName const & fn,
254 support::FileName & tmpfile, int from_format);
255 /// get appropriate name for backing up files from older versions
256 support::FileName getBackupName() const;
260 /// \name Functions involved in autosave and emergency files.
262 /// Save an autosave file to #filename.lyx#
263 bool autoSave() const;
264 /// save emergency file
265 /// \return a status message towards the user.
266 docstring emergencyWrite();
268 //FIXME:The following function should be private
271 void removeAutosaveFile() const;
274 /// Try to load an autosave file associated to \c fn.
275 ReadStatus loadAutosave();
276 /// Try to load an emergency file associated to \c fn.
277 ReadStatus loadEmergency();
278 /// Get the filename of the emergency file associated with the Buffer
279 support::FileName getEmergencyFileName() const;
280 /// Get the filename of the autosave file associated with the Buffer
281 support::FileName getAutosaveFileName() const;
283 void moveAutosaveFile(support::FileName const & old) const;
287 /// Fill in the ErrorList with the TeXErrors
288 void bufferErrors(TeXErrors const &, ErrorList &) const;
298 /// Just a wrapper for writeLaTeXSource, first creating the ofstream.
299 bool makeLaTeXFile(support::FileName const & filename,
300 std::string const & original_path,
301 OutputParams const &,
302 OutputWhat output = FullSource) const;
303 /** Export the buffer to LaTeX.
304 If \p os is a file stream, and params().inputenc is "auto" or
305 "default", and the buffer contains text in different languages
306 with more than one encoding, then this method will change the
307 encoding associated to \p os. Therefore you must not call this
308 method with a string stream if the output is supposed to go to a
312 ofs.open("test.tex");
313 writeLaTeXSource(os, ...);
315 \endcode is NOT equivalent to \code
316 odocstringstream oss;
318 writeLaTeXSource(os, ...);
320 ofs.open("test.tex");
325 void writeLaTeXSource(otexstream & os,
326 std::string const & original_path,
327 OutputParams const &,
328 OutputWhat output = FullSource) const;
330 void makeDocBookFile(support::FileName const & filename,
331 OutputParams const & runparams_in,
332 OutputWhat output = FullSource) const;
334 void writeDocBookSource(odocstream & os, std::string const & filename,
335 OutputParams const & runparams_in,
336 OutputWhat output = FullSource) const;
338 void makeLyXHTMLFile(support::FileName const & filename,
339 OutputParams const & runparams_in) const;
341 void writeLyXHTMLSource(odocstream & os,
342 OutputParams const & runparams_in,
343 OutputWhat output = FullSource) const;
344 /// returns the main language for the buffer (document)
345 Language const * language() const;
346 /// get l10n translated to the buffers language
347 docstring const B_(std::string const & l10n) const;
351 /// return true if the main lyx file does not need saving
352 bool isClean() const;
354 bool isDepClean(std::string const & name) const;
356 /// Whether or not disk file has been externally modified. Uses a checksum
357 /// which is accurate but slow, which can be a problem when it is frequently
358 /// used, or used for a large file on a slow (network) file system.
359 bool isChecksumModified() const;
361 /// Flag set by the FileSystemWatcher.
362 /// Fast but (not so) inaccurate, can be cleared by the user.
363 bool notifiesExternalModification() const;
364 void clearExternalModification() const;
366 /// mark the main lyx file as not needing saving
367 void markClean() const;
370 void markDepClean(std::string const & name);
373 void setUnnamed(bool flag = true);
375 /// Whether or not a filename has been assigned to this buffer
376 bool isUnnamed() const;
378 /// Whether or not this buffer is internal.
380 /// An internal buffer does not contain a real document, but some auxiliary text segment.
381 /// It is not associated with a filename, it is never saved, thus it does not need to be
382 /// automatically saved, nor it needs to trigger any "do you want to save ?" question.
383 bool isInternal() const;
385 void setInternal(bool flag);
387 /// Mark this buffer as dirty.
390 /// Returns the buffer's filename. It is always an absolute path.
391 support::FileName fileName() const;
393 /// Returns the buffer's filename. It is always an absolute path.
394 std::string absFileName() const;
396 /// Returns the path where the buffer lives.
397 /// It is always an absolute path.
398 std::string filePath() const;
400 /** Contructs a file name of a referenced file (child doc, included graphics etc).
401 * Absolute names are returned as is. If the name is relative, it is
402 * interpreted relative to filePath() if the file exists, otherwise
403 * relative to the original path where the document was last saved.
404 * The original path may be different from filePath() if the document was
405 * later manually moved to a different location.
407 support::DocFileName getReferencedFileName(std::string const & fn) const;
409 /// Format a file name for LaTeX output (absolute or relative or filename only,
410 /// depending on file and context)
411 std::string const prepareFileNameForLaTeX(std::string const &,
412 std::string const &, bool nice) const;
414 /** Returns a vector of bibliography (*.bib) file paths suitable for the
415 * output in the respective BibTeX/Biblatex macro
417 std::vector<docstring> const prepareBibFilePaths(OutputParams const &,
418 support::FileNamePairList const bibfilelist,
419 bool const extension = true) const;
421 /** Returns the path where a local layout file lives.
422 * An empty string is returned for standard system and user layouts.
423 * If possible, it is always relative to the buffer path.
425 std::string layoutPos() const;
427 /** Set the path to a local layout file.
428 * This must be an absolute path but, if possible, it is always
429 * stored as relative to the buffer path.
431 void setLayoutPos(std::string const & path);
433 /** A transformed version of the file name, adequate for LaTeX.
434 \param no_path optional if \c true then the path is stripped.
436 std::string latexName(bool no_path = true) const;
438 /// Get the name and type of the log.
439 std::string logName(LogType * type = 0) const;
441 /// Set document's parent Buffer.
442 void setParent(Buffer const *);
443 Buffer const * parent() const;
445 /** Get the document's master (or \c this if this is not a
448 Buffer const * masterBuffer() const;
450 /// \return true if \p child is a child of this \c Buffer.
451 bool isChild(Buffer * child) const;
453 /// \return true if this \c Buffer has children
454 bool hasChildren() const;
456 /// \return a list of the direct children of this Buffer.
457 /// this list has no duplicates and is in the order in which
458 /// the children appear.
459 ListOfBuffers getChildren() const;
461 /// \return a list of all descendents of this Buffer (children,
462 /// grandchildren, etc). this list has no duplicates and is in
463 /// the order in which the children appear.
464 ListOfBuffers getDescendents() const;
466 /// Collect all relative buffers, in the order in which they appear.
467 /// I.e., the "root" Buffer is first, then its first child, then any
468 /// of its children, etc. However, there are no duplicates in this
470 /// This is "stable", too, in the sense that it returns the same
471 /// thing from whichever Buffer it is called.
472 ListOfBuffers allRelatives() const;
474 /// Is buffer read-only? True if it has either the read-only flag or the
475 /// externally modified flag.
476 bool isReadonly() const;
478 /// Does the buffer have the read-only flag?
479 bool hasReadonlyFlag() const;
481 /// Set buffer read-only flag
482 void setReadonly(bool flag = true);
484 /** Validate a buffer for LaTeX.
485 This validates the buffer, and returns a struct for use by
486 #makeLaTeX# and others. Its main use is to figure out what
487 commands and packages need to be included in the LaTeX file.
488 It (should) also check that the needed constructs are there
489 (i.e. that the \refs points to coresponding \labels). It
490 should perhaps inset "error" insets to help the user correct
493 void validate(LaTeXFeatures &) const;
495 /// Reference information is cached in the Buffer, so we do not
496 /// have to check or read things over and over.
498 /// There are two caches.
500 /// One is a cache of the BibTeX files from which reference info is
501 /// being gathered. This cache is PER BUFFER, and the cache for the
502 /// master essentially includes the cache for its children. This gets
503 /// invalidated when an InsetBibtex is created, deleted, or modified.
505 /// The other is a cache of the reference information itself. This
506 /// exists only in the master buffer, and when it needs to be updated,
507 /// the children add their information to the master's cache.
509 /// Calling this method invalidates the cache and so requires a
511 void invalidateBibinfoCache() const;
512 /// This invalidates the cache of files we need to check.
513 void invalidateBibfileCache() const;
514 /// Updates the cached bibliography information, checking first to see
515 /// whether the cache is valid. If so, we do nothing. If not, then we
516 /// reload all the BibTeX info.
517 /// Note that this operates on the master document.
518 void reloadBibInfoCache() const;
519 /// \return the bibliography information for this buffer's master,
520 /// or just for it, if it isn't a child.
521 BiblioInfo const & masterBibInfo() const;
522 /// collect bibliography info from the various insets in this buffer.
523 void collectBibKeys() const;
524 /// add some BiblioInfo to our cache
525 void addBiblioInfo(BiblioInfo const & bi) const;
526 /// add a single piece of bibliography info to our cache
527 void addBibTeXInfo(docstring const & key, BibTeXInfo const & bi) const;
529 void makeCitationLabels() const;
531 bool citeLabelsValid() const;
533 void getLabelList(std::vector<docstring> &) const;
535 /// This removes the .aux and .bbl files from the temp dir.
536 void removeBiblioTempFiles() const;
539 void changeLanguage(Language const * from, Language const * to);
542 bool isMultiLingual() const;
544 std::set<Language const *> getLanguages() const;
547 BufferParams & params();
548 BufferParams const & params() const;
550 BufferParams const & masterParams() const;
552 /** The list of paragraphs.
553 This is a linked list of paragraph, this list holds the
554 whole contents of the document.
556 ParagraphList & paragraphs();
557 ParagraphList const & paragraphs() const;
559 /// LyX version control object.
561 LyXVC const & lyxvc() const;
563 /// Where to put temporary files.
564 std::string const temppath() const;
566 /// Used when typesetting to place errorboxes.
567 TexRow const & texrow() const;
571 ParIterator par_iterator_begin();
573 ParConstIterator par_iterator_begin() const;
575 ParIterator par_iterator_end();
577 ParConstIterator par_iterator_end() const;
579 // Position of the child buffer where it appears first in the master.
580 DocIterator firstChildPosition(Buffer const * child);
582 /** \returns true only when the file is fully loaded.
583 * Used to prevent the premature generation of previews
584 * and by the citation inset.
586 bool isFullyLoaded() const;
587 /// Set by buffer_funcs' newFile.
588 void setFullyLoaded(bool);
590 /// FIXME: Needed by RenderPreview.
591 graphics::PreviewLoader * loader() const;
592 /// Update the LaTeX preview snippets associated with this buffer
593 void updatePreviews() const;
594 /// Remove any previewed LaTeX snippets associated with this buffer
595 void removePreviews() const;
597 graphics::Cache & graphicsCache() const;
599 /// Our main text (inside the top InsetText)
602 /// Our top InsetText
603 Inset & inset() const;
608 /// Collect macro definitions in paragraphs
609 void updateMacros() const;
610 /// Iterate through the whole buffer and try to resolve macros
611 void updateMacroInstances(UpdateType) const;
613 /// List macro names of this buffer, the parent and the children
614 void listMacroNames(MacroNameSet & macros) const;
615 /// Collect macros of the parent and its children in front of this buffer.
616 void listParentMacros(MacroSet & macros, LaTeXFeatures & features) const;
618 /// Return macro defined before pos (or in the master buffer)
619 MacroData const * getMacro(docstring const & name, DocIterator const & pos, bool global = true) const;
620 /// Return macro defined anywhere in the buffer (or in the master buffer)
621 MacroData const * getMacro(docstring const & name, bool global = true) const;
622 /// Return macro defined before the inclusion of the child
623 MacroData const * getMacro(docstring const & name, Buffer const & child, bool global = true) const;
625 /// Collect user macro names at loading time
626 typedef std::set<docstring> UserMacroSet;
627 mutable UserMacroSet usermacros;
629 /// Replace the inset contents for insets which InsetCode is equal
630 /// to the passed \p inset_code.
631 void changeRefsIfUnique(docstring const & from, docstring const & to);
633 /// get source code (latex/docbook) for some paragraphs, or all paragraphs
634 /// including preamble
635 /// returns nullptr if Id to Row conversion is unsupported
636 unique_ptr<TexRow> getSourceCode(odocstream & os,
637 std::string const & format, pit_type par_begin,
638 pit_type par_end, OutputWhat output, bool master) const;
640 /// Access to error list.
641 /// This method is used only for GUI visualisation of Buffer related
642 /// errors (like parsing or LateX compilation). This method is const
643 /// because modifying the returned ErrorList does not touch the document
645 ErrorList & errorList(std::string const & type) const;
648 /// This is useful only for screen visualisation of the Buffer. This
649 /// method is const because modifying this backend does not touch
650 /// the document contents.
651 TocBackend & tocBackend() const;
656 /// This function is called when the buffer is changed.
657 void changed(bool update_metrics) const;
659 void setChild(DocIterator const & dit, Buffer * child);
661 void updateTocItem(std::string const &, DocIterator const &) const;
662 /// This function is called when the buffer structure is changed.
663 void structureChanged() const;
664 /// This function is called when some parsing error shows up.
665 void errors(std::string const & err, bool from_master = false) const;
666 /// This function is called when the buffer busy status change.
667 void setBusy(bool on) const;
668 /// Update window titles of all users.
669 void updateTitles() const;
670 /// Reset autosave timers for all users.
671 void resetAutosaveTimers() const;
673 void message(docstring const & msg) const;
676 void setGuiDelegate(frontend::GuiBufferDelegate * gui);
678 bool hasGuiDelegate() const;
681 ExportStatus doExport(std::string const & target, bool put_in_tempdir) const;
682 /// Export buffer to format \p format and open the result in a suitable viewer.
683 /// Note: This has nothing to do with preview of graphics or math formulas.
684 ExportStatus preview(std::string const & format) const;
685 /// true if there was a previous preview this session of this buffer and
686 /// there was an error on the previous preview of this buffer.
687 bool lastPreviewError() const;
691 ExportStatus doExport(std::string const & target, bool put_in_tempdir,
692 std::string & result_file) const;
693 /// target is a format name optionally followed by a space
694 /// and a destination file-name
695 ExportStatus doExport(std::string const & target, bool put_in_tempdir,
696 bool includeall, std::string & result_file) const;
698 ExportStatus preview(std::string const & format, bool includeall) const;
700 void setMathFlavor(OutputParams & op) const;
704 bool isExporting() const;
707 typedef std::vector<std::pair<Inset *, ParIterator> > References;
709 References const & references(docstring const & label) const;
711 void addReference(docstring const & label, Inset * inset, ParIterator it);
713 void clearReferenceCache() const;
715 void setInsetLabel(docstring const & label, InsetLabel const * il);
717 InsetLabel const * insetLabel(docstring const & label) const;
719 /// return a list of all used branches (also in children)
720 void getUsedBranches(std::list<docstring> &, bool const from_master = false) const;
722 /// sets the buffer_ member for every inset in this buffer.
723 // FIXME This really shouldn't be needed, but at the moment it's not
724 // clear how to do it just for the individual pieces we need.
725 void setBuffersForInsets() const;
726 /// Updates screen labels and some other information associated with
727 /// insets and paragraphs. Actually, it's more like a general "recurse
728 /// through the Buffer" routine, that visits all the insets and paragraphs.
729 void updateBuffer() const { updateBuffer(UpdateMaster, InternalUpdate); }
730 /// \param scope: whether to start with the master document or just
732 /// \param output: whether we are preparing for output.
733 void updateBuffer(UpdateScope scope, UpdateType utype) const;
735 void updateBuffer(ParIterator & parit, UpdateType utype) const;
737 /// Spellcheck starting from \p from.
738 /// \p from initial position, will then points to the next misspelled
740 /// \p to will points to the end of the next misspelled word.
741 /// \p word_lang will contain the found misspelled word.
742 /// \return progress if a new word was found.
743 int spellCheck(DocIterator & from, DocIterator & to,
744 WordLangTuple & word_lang, docstring_list & suggestions) const;
746 void checkChildBuffers();
748 void checkMasterBuffer();
750 /// If the document is being saved to a new location and the named file
751 /// exists at the old location, return its updated path relative to the
752 /// new buffer path if possible, otherwise return its absolute path.
753 /// In all other cases, this is a no-op and name is returned unchanged.
754 /// If a non-empty ext is given, the existence of name.ext is checked
755 /// but the returned path will not contain this extension.
756 /// Similarly, when loading a document that was moved from the location
757 /// where it was saved, return the correct path relative to the new
759 std::string includedFilePath(std::string const & name,
760 std::string const & ext = empty_string()) const;
762 /// compute statistics between \p from and \p to
763 /// \p from initial position
764 /// \p to points to the end position
765 /// \p skipNoOutput if notes etc. should be ignored
766 void updateStatistics(DocIterator & from, DocIterator & to,
767 bool skipNoOutput = true) const;
768 /// statistics accessor functions
769 int wordCount() const;
770 int charCount(bool with_blanks) const;
772 // this is const because it does not modify the buffer's real contents,
773 // only the mutable flag.
774 void setChangesPresent(bool) const;
775 bool areChangesPresent() const;
776 void updateChangesPresent() const;
779 friend class MarkAsExporting;
780 /// mark the buffer as busy exporting something, or not
781 void setExportStatus(bool e) const;
784 References & getReferenceCache(docstring const & label);
785 /// Change name of buffer. Updates "read-only" flag.
786 void setFileName(support::FileName const & fname);
788 void getLanguages(std::set<Language const *> &) const;
789 /// Checks whether any of the referenced bibfiles have changed since the
790 /// last time we loaded the cache. Note that this does NOT update the
791 /// cached information.
792 void checkIfBibInfoCacheIsValid() const;
793 /// Update the list of all bibfiles in use (including bibfiles
794 /// of loaded child documents).
795 void updateBibfilesCache(UpdateScope scope = UpdateMaster) const;
796 /// Return the list with all bibfiles in use (including bibfiles
797 /// of loaded child documents).
798 support::FileNamePairList const &
799 getBibfilesCache(UpdateScope scope = UpdateMaster) const;
801 void collectChildren(ListOfBuffers & children, bool grand_children) const;
804 Buffer(Buffer const &);
805 void operator=(Buffer const &);
807 /// Use the Pimpl idiom to hide the internals.
809 /// The pointer never changes although *pimpl_'s contents may.
814 /// Helper class, to guarantee that the export status
815 /// gets reset properly. To use, simply create a local variable:
816 /// MarkAsExporting mex(bufptr);
817 /// and leave the rest to us.
818 class MarkAsExporting {
820 MarkAsExporting(Buffer const * buf) : buf_(buf)
822 buf_->setExportStatus(true);
826 buf_->setExportStatus(false);
829 Buffer const * const buf_;